:root {
    --primary-color: #0a2463;
    --primary-dark: #061539;
    --secondary-color: #1e5f8a;
    --accent-color: #3e92cc;
    --gold-color: #d4af37;
    --gold-light: #f4e4b5;
    --text-dark: #1a1a2e;
    --text-medium: #4a4a5a;
    --text-light: #6b6b7b;
    --bg-light: #f8f9fc;
    --bg-white: #ffffff;
    --border-color: #e1e5eb;
    --success-color: #2d8a4e;
    --gradient-primary: linear-gradient(135deg, #0a2463 0%, #1e5f8a 100%);
    --gradient-gold: linear-gradient(135deg, #d4af37 0%, #f4e4b5 100%);
    --shadow-sm: 0 2px 4px rgba(10, 36, 99, 0.08);
    --shadow-md: 0 4px 12px rgba(10, 36, 99, 0.12);
    --shadow-lg: 0 8px 30px rgba(10, 36, 99, 0.15);
    --shadow-xl: 0 20px 50px rgba(10, 36, 99, 0.2);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
}

/* Reset & Base Styles */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
    color: var(--text-medium);
}

/* ================================
   Header
   ================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 28px;
    color: var(--gold-color);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.nav {
    display: flex;
    gap: 32px;
}

.nav-item {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-medium);
    cursor: default;
    transition: color 0.2s ease;
}

.nav-item:hover {
    color: var(--primary-color);
}

/* ================================
   Hero Section
   ================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 80px;
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(62, 146, 204, 0.3) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 60%;
    height: 100%;
    background: radial-gradient(ellipse, rgba(212, 175, 55, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    z-index: 1;
}

.hero h1 {
    color: var(--bg-white);
    margin-bottom: 24px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 48px;
    max-width: 500px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gold-color);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 8px;
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1;
}

/* Credit Card Preview */
.card-preview {
    width: 380px;
    height: 240px;
    background: linear-gradient(135deg, #1a1a2e 0%, #2d2d44 50%, #1a1a2e 100%);
    border-radius: var(--radius-lg);
    padding: 30px;
    position: relative;
    box-shadow: var(--shadow-xl), 0 0 60px rgba(212, 175, 55, 0.3);
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform 0.3s ease;
}

.card-preview:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.card-preview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 40%, rgba(255, 255, 255, 0.1) 50%, transparent 60%);
    border-radius: var(--radius-lg);
    pointer-events: none;
}

.card-chip {
    width: 50px;
    height: 40px;
    background: linear-gradient(135deg, #d4af37 0%, #f4e4b5 50%, #d4af37 100%);
    border-radius: 6px;
    margin-bottom: 30px;
    position: relative;
}

.card-chip::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 25px;
    border: 2px solid rgba(0, 0, 0, 0.2);
    border-radius: 3px;
}

.card-number {
    font-family: 'Courier New', monospace;
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: 3px;
    margin-bottom: 25px;
}

.card-details {
    display: flex;
    gap: 40px;
}

.card-holder, .card-expiry {
    display: flex;
    flex-direction: column;
}

.card-label {
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-value {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    margin-top: 4px;
}

.card-logo {
    position: absolute;
    bottom: 25px;
    right: 30px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--gold-color);
    letter-spacing: -0.5px;
}

/* ================================
   Section Styles
   ================================ */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ================================
   Features Section
   ================================ */
.features {
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--bg-white);
    padding: 40px 30px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, rgba(10, 36, 99, 0.08) 0%, rgba(62, 146, 204, 0.12) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-card h3 {
    margin-bottom: 12px;
    color: var(--primary-color);
}

.feature-card p {
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ================================
   Accounts Section
   ================================ */
.accounts {
    background: var(--bg-white);
}

.accounts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.account-card {
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    position: relative;
    transition: all 0.3s ease;
}

.account-card:hover {
    border-color: var(--accent-color);
    box-shadow: var(--shadow-md);
}

.account-card.featured {
    border-color: var(--primary-color);
    background: linear-gradient(to bottom, rgba(10, 36, 99, 0.02), var(--bg-white));
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.account-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: var(--bg-white);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.account-card.featured .account-badge {
    background: var(--gold-color);
    color: var(--primary-dark);
}

.account-card h3 {
    text-align: center;
    margin-bottom: 20px;
    margin-top: 10px;
}

.account-price {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.account-price .price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.account-price .period {
    font-size: 1rem;
    color: var(--text-light);
}

.account-features {
    list-style: none;
}

.account-features li {
    padding: 10px 0;
    color: var(--text-medium);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.account-features .check {
    color: var(--success-color);
    font-weight: 700;
}

/* ================================
   Testimonials Section
   ================================ */
.testimonials {
    background: var(--bg-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: var(--bg-white);
    padding: 35px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    box-shadow: var(--shadow-md);
}

.testimonial-rating {
    color: var(--gold-color);
    font-size: 1.2rem;
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-medium);
    margin-bottom: 25px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-weight: 600;
    font-size: 0.9rem;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 600;
    color: var(--text-dark);
}

.author-title {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* ================================
   Trust Section
   ================================ */
.trust {
    background: var(--bg-white);
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.trust-items {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.trust-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    width: 40px;
    height: 40px;
    background: rgba(10, 36, 99, 0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.trust-item span:last-child {
    font-weight: 600;
    color: var(--text-medium);
}

/* ================================
   CTA Section
   ================================ */
.cta {
    background: var(--gradient-primary);
    text-align: center;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta h2 {
    color: var(--bg-white);
    margin-bottom: 20px;
}

.cta p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.cta-features span {
    color: var(--gold-light);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.cta-features .check {
    color: var(--gold-color);
}

/* ================================
   Footer
   ================================ */
.footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand .logo-text {
    color: var(--bg-white);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
    line-height: 1.7;
}

.footer-links h4 {
    color: var(--bg-white);
    font-size: 1rem;
    margin-bottom: 20px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links span {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    cursor: default;
    transition: color 0.2s ease;
}

.footer-links span:hover {
    color: var(--gold-color);
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}

.footer-bottom .disclaimer {
    margin-top: 10px;
    font-style: italic;
    color: rgba(255, 255, 255, 0.4);
}

/* ================================
   Responsive Design
   ================================ */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 140px 24px 80px;
    }

    .hero-content {
        max-width: 100%;
        margin-bottom: 60px;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-stats {
        justify-content: center;
    }

    .features-grid,
    .accounts-grid,
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .account-card.featured {
        transform: scale(1);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 16px;
    }

    .nav {
        gap: 20px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

    .card-preview {
        width: 320px;
        height: 200px;
        padding: 24px;
    }

    .card-number {
        font-size: 1.1rem;
    }

    .features-grid,
    .accounts-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .trust-items {
        gap: 30px;
    }

    .cta-features {
        flex-direction: column;
        gap: 15px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .footer-links {
        align-items: center;
    }
}

@media (max-width: 480px) {
    section {
        padding: 60px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .feature-card,
    .account-card,
    .testimonial-card {
        padding: 30px 20px;
    }

    .card-preview {
        width: 280px;
        height: 175px;
        padding: 20px;
    }

    .card-chip {
        width: 40px;
        height: 32px;
        margin-bottom: 20px;
    }

    .card-number {
        font-size: 1rem;
        margin-bottom: 15px;
    }

    .card-details {
        gap: 20px;
    }
}

/* ================================
   Animations
   ================================ */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Subtle animation for the card */
.card-preview {
    animation: float 6s ease-in-out infinite;
}

/* Smooth scroll behavior for anchor links */
html {
    scroll-behavior: smooth;
}

/* Selection styling */
::selection {
    background: var(--accent-color);
    color: var(--bg-white);
}